Para mejor analisis, tengo este resultado:
05:53:59 SQL> select message from v$dataguard_status;
MESSAGE
ARC0: Archival started
ARC1: Archival started
Attempt to start background Managed Standby Recovery process
Media Recovery Waiting for thread 1 seq# 49553
Fetching gap sequence for thread 1, gap sequence 49553-49553
Trying FAL server: PRODDG
Failed to request gap sequence. Thread #: 1, gap sequence: 49553-49553
All FAL server has been attempted.
RFS: Successfully opened standby logfile 6: ‘D:ORACLEORADATAPRODSTBY_REDO01.
LOG’
ARC1: Evaluating archive log 6 thread 1 sequence 52613
ARC1: Beginning to archive log 6 thread 1 sequence 52613
Creating archive destination LOG_ARCHIVE_DEST_1: ‘D:ORACLEORADATAPRODARCHIVE
ARCHIVE_PROD52613_1.ARC’
RFS: Successfully opened standby logfile 7: ‘D:ORACLEORADATAPRODSTBY_REDO02.
LOG’
ARC1: Completed archiving log 6 thread 1 sequence 52613
Managed Standby Recovery Cancelled
MESSAGE
Attempt to start background Managed Standby Recovery process
Media Recovery Waiting for thread 1 seq# 49553
Fetching gap sequence for thread 1, gap sequence 49553-49553
Trying FAL server: PRODDG
Failed to request gap sequence. Thread #: 1, gap sequence: 49553-49553
All FAL server has been attempted.
21 rows selected.